S1U1B3U1N1I1T1S1
10 points
SUBUNITS is validvalid
SUBUNIT, a unit that is a part of a larger unit [n]
SUBUNIT, a unit that is part of a larger unit [n]
SUBUNIT, a unit that is a part of a larger unit [n]
SUBUNIT, a unit that is part of a larger unit [n]